Flue-cleaner



(Modem W. J. BRADSHAW.

FLUE CLEANER. No. 272,640. Patented Feb. 20,1883.

7 WITNESSEQ' INVENTOR n a. MZM;

Attorney FFICE.

" ATENT WILLIAM J. BRADSHAW, OF CLEVELAND, 01110.

FLU E -CLEAN ER.

SPECIFICATION forming part of Letters Patent No. 272,640, dated February20, 1883.

' Application filed August 18, 1882. '(ModeL) .To all whom "it mayconcern:

Be it known that I, WILLIAM J. BRADSHAW, a citizen of the United States,residing at Olevelanthinthecountyof Ouyahogaand State of Ohio, haveinvented certain new and useful Improvements in Flue-Cleaners; and I dohereby declare that the following is a. full, clear, and exactdescription of the same, reference being had to the annexed drawings,making a part of this specification, and to the letters and figures ofreference marked thereon.

Figure l of the drawings is a side elevation of my invention; Fig. 2, atop plan view; and Fig. 3, a longitudinal vertical section of the same,taken through line 00 00, Fig. 2.

This invention relates to certain new and useful improvementsintine-cleaners for steamboilers; and the object thereof is to providesuch a device as will besimple in construction, (ffrGllVB in operation,and that can he manufactured at a small cost. These objects I attain bythe construction snbstantiallyas shown in the drawings and hereinafterdescribed.

In the accompanying drawings, A represents the flue-cleaner, cast ofmetal, hating projecting radial pointed wings B, which serve as a guidefor its entrance to the flue. Upon the inner surface of the cleaner areformed curved wings O, which serve to give a rotatingmotion to thesteam, which enters the cleaner through a steam-pipe engaging with thescrew-threads a upon the inner surface of the lower extremity of thesaid cleaner, the steam entering the flue through ports I).

When a flue is to be cleaned the cleaner is connected to a steam-pipeand entered into the line, the projecting radial pointed wings acting asa. guide to its entrance. The steam, when turned on, is given a rapidrota'ry motion by the curved wings, thereby removing the scale orincrustation from the interior of the flue in a thorough and completemanner.

By constructing a flue-cleaner in the manner described I produce onethat is always ready, and that has no detachable parts to become lost orbroken.

Having now fully'descrihed my invention, what I claim as new, and desireto secure by Letters Patent, is-

1'. As an improved article of manufacture, a flue-cleaner cast in onepiece, with projecting radial arms and inner curved wings,substatitially as and for the purpose set forth.

2. The flue-cleaner A, having projecting radial guidewings B, innercurved wing U, and screw threads at, for connecting a steampipe,substantially as and for the purpose specified.

In testimony that I claim the above I have hereunto subscribed my namein the presence oftwo witnesses.

WILLIAM J. BRADSHAW.

Witnesses:

WM. CLARK, H. W. UANFIELD.

